gistfile1.cpp

#include <iostream>
#include <string>
using namespace std;

int main()
{
	const string str = "Hello world";
	string revStr = "";

	for (int i = 0, j = str.length(); i < str.length(); j--, i++)
		revStr[i] = str[j];

	for (int i = 0; i < str.length(); i++)
		cout << revStr[i];
}